Discussion
Normal distribution curve is of .........
Answer: A
The normal distribution curve is Bell-shaped.
The normal curve is symmetrical about its mean, with the mean, median and mode all at the centre. Values cluster around the centre and taper off equally on both sides, giving the familiar bell shape; about 68% of cases lie within one standard deviation of the mean and about 95% within two.
A skewed curve is by definition not normal, because one tail is longer than the other. 'Z-shaped' and 'W-shaped' do not describe the curve; the letter Z is used for standard scores of a normal distribution, which is the likely source of the trap.
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